Electrolier.



R. B. BENJAMIN. ELECTROLIER. APPLICATION FILED MAR. 1 0. 19| l.

Patented Oct. 26, 191

I 'i HAM i I@ /0 mi h LEI y `y I I 43 7g t mH53 MI gd 375 \YI 3S 415 uY. u y 555 Q) REUBEN B, BENJAMN, OF CHXGGO, ILLINUS, SSGNOR T0 BENJAMNELECTRIC MFG. COMPANY, GF CHCGG, LLNOS, A CORPGRATION OF ILLINOIS.

ELEGTROLEE,

Specication of Letters iatentD Patented Uct. 2d, Mild.,

@riginal application lcd December 27, 13 6'9, Serial No. 535,162.Divided and this application filed March To all whom t may concer/n:

Be it known that I, RnUnN B. BENJA MIN, a citizen of the United States,residing at Chicago, in the county of Cook and State of lllinois, haveinvented new and useful Imf provements in Electroliers, of which the following is a full, clear, concise, and exact description, reference beinghad to the ac companying drawing, forming a part oit this specification.L

My invention relates to electroliers having individual switches for thelamps carried by the various arms thereof, and has as its principalobject the provision of a device of this character, in which jarring ofthe lamps, due to the operation of the switches, is minimized.

lit is a further object of my invention to provide an improved pullswitch mechanism.

lt is a considerable disadvantage in electroliers of the usual forms ofconstruction that the switches for controlling the lamps are usuallycarried by the sockets thernselves. This gives rise to -a jarring effectupon the lamps, particularly when the switches are of the kind known aspull switches. This kind of switch. is, however, in other respects avery convenient variety. Now that the` tungsten and other similar lampshave come into general use, this disadvantage has become the moreimportant, since the filaments of these lamps are very delicate and avery little vibration injures them. l remedy the above drawback vby' ofpull switches, one

providing a plurality for each arm of the electrolier, situated in thebody of the electrolier, so that there is no chance of appreciablevibration 'being imparted to the lamps.

ln the accompanying drawing, I have shown an electrolier constructed inaccordance with my invention, the device shown being the same, in itsdetails, as that described in my PatentNo. 1,016,317,l dated February 6,1912, of which this application is a division. It is to be understood,however, that, in other embodiments of my in vention, the details of theelectrolier may be changed without exceeding the scope of my inventionas defined in the appended claimso lin the drawings: Figure 1 1s apartly sec tional elevation of an'clectrolier construct- Serial No.613,571.

ed in accordance with my' invention; Fig. 2 is a plan of theswitch-supporting base; Fig. 3 is a detail sectional view, the sectionbeing taken on the line 3 3 of Fig. 2; and Fig. 4 is a detail sectionalview, the section being taken on the line d-Ll of Fig. 2.

Referring now to the drawings, 1 0 is a supporting plate or memberadapted to be secured to the lower end of a conduit such as 11. To thisplate are connected a pluralityof lamp-socket-supporting arms 12, theconnection being effected by securing L-7 shaped extensions 13 upon theends of the arms 12 and connecting these extensions to the plate 10 bymeans of hollow rivetsA 14 passing through suitable holes formed in 'thesupporting plate 10 and in the extensions 13. The hollow rivets 14C areof suiicient size to permit the passage therethrough of the conductorsleading from. the sockets and entering theelectrolier through the hollowarms 12., To the lower side of the supporting plate 10 is secured, aswill lbe hereinaiter described, a switch-supporting base 22, the basebeing protected by an' outer casing 16 which lits upon the plate 10 andis formed with a plurality of vertical recesses 15, through which thesocket-supporting arms l2 extend outwardly. ln order to impart apleasing and finished appearance to the device, a hood 21 is mounted onthe conduit 11, the hood being arrangedto engage over and close theupper end of the casing 16.

The switch-supporting base 22 is secured in placeupon the lower side ofthe supporting plate 10 by means of screws 23 which pass through thebase and into thesupportu ing plate. -These kscrews also serve to securein position upon the underside. of the base 22, a bridge 24 to which thecasing 16 is attached by means of a suitable thumb screw 25. Clampedbetween the bridge 24 and the under side of the base 22 is an insulatingplate 26 which extends over the whole of the lower tace of the base 22.

rlFhe base 22 is formed with an upper and a lower annular recess, 27 and28 respectively, in which are secured, by means of suitable rivets suchas 29, conductor rings 30 and 31. The upper conductor ring 30 carries abinding terminal 31 to which onel ot the leading-in wires, 'enteringthrough the ioo ldd

conductors leading vmg ring 31 carries minals 32, to one of conduit 11,is secured. Thev lower conducta number-of binding ter-A which the otherleading" in wire is secured. The other binding terminals 32 each receivethe endof one of the from the lamp sockets i and extending through thearms 12 and hol- .terminal plates carry'binding terminals 35 y each ofwhich receives the end of a conductor leading from the respective lampsocket. To accommodate the conductors whlch are to be securedto thebinding lterminals 35, the, l

baseis formed with passages 36 extending therethrough and openingadjacent these binding terminals. The'conductlorring 30 isV providedwith a plurality of spring centact strips 37 extending outwardly throughsuitable passages formed in the base 22, one

of these strips lbeing provided for each of the Contact plates 33. TheseContact Strips tll', adapted t0 be forced into contact with the plates33 by means of triangular cams 38 mounted upon spindles 39 rotatablysup- Aported in suitable 4recesses of the base.

When acontact strip rests upon one'of the flat portions of itsparticular -cam it remains out of contact with the corresponding con-'that one'of its angles ring 31 and the other tact plate 33, but whenthe cam is turned so bears against the con tact strip, the latter isforced up against the contact plate 33. Electrical connection is therebyestablished between Athe conductor ring 30 and the particular contactplate 33, current being thereby enabled to flow from the leading-,inwire to the conductor ring 30, thence to the particular contact plate33, thence to the lamp and back to the conductor leading-in wire.

In order .that the rotation of the cams 38 may be effected, a ratchetwheel 40 is mount-` ed upon each of the spindles 39, each of these etA-seein that a 'single ratchet wheels having six teeth. Rockably mountedupon each spindle 39 is a lever 41 carrying a spring pawl arranged toengage the teeth of the adjacent ratchet wheel. To each of these leversis attached a flexible cord 42 by meansof which the levers may beoperated, the casing 16 being formed with suitable openings through 42exten tween the levers 41 and the support plate 10 to effect the returnofthe levers after a switch has been operated. It will thus be pull onany one of the cords 42 will operate to switch the corresponding lampeither on or od', while a second pull will put the lamp into thereverse` condition. rlhe switches being supported in kupon said plate'and which the cords v Springs 43 are connected bethe body of theelectrolier, little or no vibration is imparted'to the lamps carried bythe arms 12, when the lamps are turned onor oi. Besides this, theconstruction is a very simple one and very convenient in use.

aving thus'desc'ribed my invention, what I claimv as new and ,desire tosecure by Letters Patent, is:

rality of lamp. socket carrying arms secured extending radiallytherefrom, an insulating base mounted on the under side'of said plate,and a plurality of pull switches, one for each of said lamp smretcarrying arms mounted on said base an amp sockets carried on said arms,the pull means for these switches being located around the axis of thecenter support in positions corresponding to -the positions of thevarious lamps whereby the operator may know which light will be lit whena certain pull is operated.

.2. Ain electrolitr comprising, in combina- 110113I il' ClltltliSllIlDOltlIlg plate arranged to e secured upon the end of a conduit, aplurality of lamp socket supporting arms carried y'thereby and radiallyextending from said conduit, an insulating base secured on the underside of said supporting plate, and a plurality of pull switches mountedon said base, one for each of the sockets carried on said arms, and aninclosing cover for the base, the pull means for these switches beinglocated around thev axis of the center support in positionscorresponding tothe positions of the various lamps whereby the'operatormay know which light will be lit when a certain pull is operated.

3. Thecombination with a central support, of means for supporting aplurality -of electric lamps thereon around the axis of said centralsupport, and a plurality of pull switches, one for each of said lamps,all supported independently of the lamps by said central support, thepull means for these switches being located around the axis of the saidcentral support in various positions corresponding to the positions ofthe various lamps, whereby the operator may know which light will be litwhenA a certain pull is operated.

4. A plural lamp fixture comprising means for supporting a plurality oflamps, a `conducting member having a terminal obnnection for one of themain feed wires,

and a plurality of terminal connections, one l adapted to control thecircuit of the meeuw 5. A plural lamp fixture comprising means forsupporting a plurality of lamps,

an annular conducting member having a terminal connection for one of themain feed wires, and a plurality of terminal connections, one for eachof the lamps, a second annular conducting member having a terminalconnection for the other main feed wire, and a plurality of terminalconnections, one

10 for each of the lamps, and a.plurality of slwitehes, one located ineach individual lamp circuit.

In witness whereof, l have lhereunto subscribed my name in the presenceof two witnesses.

REUBEN B. BENJAMlN.

